Brewing coffee with a Hario coffee dripper can yield an exceptional cup of coffee. The spiraling ridges on the inside of the dripper are designed for water to be added in a circular motion. With practice, timing and technique will become second nature. We recommend Hario's own Buono kettle to give you excellent control of your pour. It is also important to use the Hario filters designed for their drippers. This version comes in durable clear plastic that is lightweight and that will minimize changes to water temperature during brewing. Ideal for brewing 1 to 4 cups.